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Radiant|Natural|GIA

1.70ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 2546435003

Certificate GIA 2546435003

Diamond specifications and retailer prices

From £6,146 GBP
As of November 4, 2026
Save £4,795 GBP (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £10,941 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546435003. Listed at 17 retailers as of November 4, 2026, with prices from £6,146 to £10,941, a £4,795 spread on the same certified stone. NZ Jewellers lists it at £10,941. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.70
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle44.86°
Pavilion angle32.43°
OriginNatural
Grading LabGIA
CertificateGIA 2546435003
Dimensions7.54 × 5.86 × 4.08 mm
L/W Ratio1.29
Top View
7.54 mm5.86 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2546435003
Side View
Table 67.0%Crown 44.86°GirdlePavilion 32.43°CuletDepth 69.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £7,352 GBP|Low: £6,017 GBP|High: £10,376 GBP|Avg: £7,668 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10£6,146 GBP
Retailer 2£6,519 GBP
Retailer 9£6,564 GBP
Retailer 4£7,108 GBP
Retailer 8£7,212 GBP
Retailer 1£7,352 GBP
Retailer 5£8,225 GBP
Retailer 3£8,330 GBP
Retailer 6£9,577 GBP
Retailer 7£10,225 GBP

37 data points across 10 retailers

17 retailers£6,146 GBP to £10,941 GBP

B+
Cheapest Retailer
-
£6,146 GBP
B+
Retailer 2
-
£6,161 GBP
View
B+
Retailer 3
-
£6,519 GBP
View
B+
Retailer 4
-
£6,564 GBP
View
Final sale: no returns
B+
Retailer 5
-
£7,108 GBP
View
B
Retailer 6
-
£7,112 GBP
View
Retailer 7
-
£7,212 GBP
View
Price last confirmed 15 days ago
B
Retailer 8
-
£7,222 GBP
View
B
Retailer 9
-
£7,352 GBP
View
B
Retailer 10
-
£7,839 GBP
View
B
Retailer 11
-
£8,206 GBP
View
B
Retailer 12
-
£8,225 GBP
View
Retailer 13
-
£8,330 GBP
View
Retailer 14
-
£8,641 GBP
View
Price last confirmed 15 days ago
B
Retailer 15
-
£9,577 GBP
View
B
Retailer 16
-
£10,225 GBP
View
Most Expensive
B
NZ Jewellers
40f85a0d-a808-48f2-8506-71cfa60317fb · Nov 5
£10,941 GBP
$14,645 USD
View
16 more retailers have this diamond
Prices start from £6,146 GBPSave up to £4,795 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.70ct Radiant
£6,146 GBP